better, whatever that might mean? whatever age i'm at? then, i'm certainly do that. >> reporter: a performance enhanced lifestyle, banned on the playing field, growing strong everywhere else. i'm neal karlinsky for "nightline" in california. >> testosterone. thank you, neal karlinsky, for that. next up, our team treld tree waters in the wilds of brazil searching for the biggest and most feared snake on earth, the anaconda. [ diana ] power was very important to me. we test-drove the camry, took it on the freeway, and it was just like -- this was the car for me. [ ryan ] it has stuff that guys like, like the rims and the sleekness to the body. and, then, had the bluetooth and the navigation that diana really wanted. [ diana ] and it was an se, so it felt really grounded to the ground. [ man ] grounded to the ground? yes, yes! grounded to the ground.